NO974130L - Broadband switching system - Google Patents

Broadband switching system

Info

Publication number
NO974130L
NO974130L NO974130A NO974130A NO974130L NO 974130 L NO974130 L NO 974130L NO 974130 A NO974130 A NO 974130A NO 974130 A NO974130 A NO 974130A NO 974130 L NO974130 L NO 974130L
Authority
NO
Norway
Prior art keywords
data cells
dbg
cells
input port
maximum transmission
Prior art date
Application number
NO974130A
Other languages
Norwegian (no)
Other versions
NO974130D0 (en
Inventor
Avril Joy Smith
John Leonard Adams
Original Assignee
Univ Oxford Brookes
British Telecomm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Oxford Brookes, British Telecomm filed Critical Univ Oxford Brookes
Publication of NO974130D0 publication Critical patent/NO974130D0/en
Publication of NO974130L publication Critical patent/NO974130L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/427—Loop networks with decentralised control
    • H04L12/433—Loop networks with decentralised control with asynchronous transmission, e.g. token ring, register insertion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L12/5602—Bandwidth control in ATM Networks, e.g. leaky bucket
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5615—Network termination, e.g. NT1, NT2, PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • H04L2012/5635—Backpressure, e.g. for ABR
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5636—Monitoring or policing, e.g. compliance with allocated rate, corrective actions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5639—Tariffs or charging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5649—Cell delay or jitter

Abstract

I et bredbåndet koplingssystem for kopling av asynkront overførte dataceller styrer en dynamisk båndbredde-styringsenhet (DBG) tilførselen av dataceller til en inngangsport i systemet, idet datacellene blir levert av et antall sendende endesystemer. Når el endesystem begynner sending av dataceller, detekterer DBG forekomsten av innkommende celler og anmo- der om båndbredde fra en forbindelsesadgang-styreenhet (CAC) som ut- gjør en del av systemet Kopiingssystemet lagrer en tabell som tilordner et antall signalkilder forbundet med inngangsporten, med respektive forut- bestemte maksimale overføringstider og maksimale overføringshastigheter for kildene. Når ankomst av celler ved inngangsporten fra en av kildene blir detektert, virker DBG og CAC sammen for å tildele tilstrekkelig båndbredde i kopiingssystemet for å tillate den respektive meldingsstørrelse å bli over- ført innenfor den respektive maksimale overføringstid. En garantert minste overføringshastighet er også garantert for kilden.In a broadband switching system for switching asynchronously transmitted data cells, a dynamic bandwidth control unit (DBG) controls the supply of data cells to an input port of the system, the data cells being supplied by a number of transmitting end systems. When each end system starts transmitting data cells, DBG detects the incidence of incoming cells and requests bandwidth from a connection access control unit (CAC) that is part of the system The copy system stores a table that assigns a number of signal sources associated with the input port with respectively predetermined maximum transmission times and maximum transmission rates for the sources. When arrival of cells at the input port from one of the sources is detected, DBG and CAC work together to allocate sufficient bandwidth in the copy system to allow the respective message size to be transmitted within the respective maximum transmission time. A guaranteed minimum transfer rate is also guaranteed for the source.

NO974130A 1995-03-08 1997-09-08 Broadband switching system NO974130L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP95301520 1995-03-08
PCT/GB1996/000536 WO1996027966A1 (en) 1995-03-08 1996-03-08 Broadband switching system

Publications (2)

Publication Number Publication Date
NO974130D0 NO974130D0 (en) 1997-09-08
NO974130L true NO974130L (en) 1997-11-07

Family

ID=8221116

Family Applications (1)

Application Number Title Priority Date Filing Date
NO974130A NO974130L (en) 1995-03-08 1997-09-08 Broadband switching system

Country Status (11)

Country Link
US (1) US6452905B1 (en)
EP (1) EP0813783A1 (en)
JP (1) JPH11501477A (en)
KR (1) KR19980702939A (en)
CN (1) CN1183190A (en)
AU (1) AU719514B2 (en)
CA (1) CA2214839C (en)
MX (1) MX9706821A (en)
NO (1) NO974130L (en)
NZ (1) NZ303240A (en)
WO (1) WO1996027966A1 (en)

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Also Published As

Publication number Publication date
AU719514B2 (en) 2000-05-11
CA2214839A1 (en) 1996-09-12
WO1996027966A1 (en) 1996-09-12
NO974130D0 (en) 1997-09-08
MX9706821A (en) 1998-10-31
CN1183190A (en) 1998-05-27
JPH11501477A (en) 1999-02-02
KR19980702939A (en) 1998-09-05
US6452905B1 (en) 2002-09-17
AU4948996A (en) 1996-09-23
NZ303240A (en) 1999-06-29
CA2214839C (en) 2007-07-31
EP0813783A1 (en) 1997-12-29

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